6616798145 has 8 divisors (see below), whose sum is σ = 8014365504. Its totient is φ = 5243966704.

The previous prime is 6616798129. The next prime is 6616798147. The reversal of 6616798145 is 5418976166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6616798145 - 2⁴ = 6616798129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6616798147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6183389 + ... + 6184458.

It is an arithmetic number, because the mean of its divisors is an integer number (1001795688).

Almost surely, 2^6616798145 is an apocalyptic number.

It is an amenable number.

6616798145 is a deficient number, since it is larger than the sum of its proper divisors (1397567359).

6616798145 is a wasteful number, since it uses less digits than its factorization.

6616798145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12367959.

The product of its digits is 2177280, while the sum is 53.

The square root of 6616798145 is about 81343.7037821613. The cubic root of 6616798145 is about 1877.3675001632.

The spelling of 6616798145 in words is "six billion, six hundred sixteen million, seven hundred ninety-eight thousand, one hundred forty-five".